I modded my mid-90's Cry Baby a couple of years ago. Those Dunlop boards and not nearly as robust as the PedalPCB Tear Jerker. I added an 8-position rotary switch for selecting the capacitor in the tuned network, a Q pot and a Gilmour Switch that more-or-less swaps the input and output for that signature tone in Echoes. Now that I have a Tear Jerker board, I'll redo it so it's cleaner. Only thing I don't like about the Tear Jerker is it doesn't have the emitter-follower buffer up front. Easily fixed with a bit o' Vero.